One of the top ten trends  spotted in the Knot 2015 Jewellery & Engagement Study is the increased spend on the ring currently an average of US$ 5,978, up from US$ 5,403 in 2013 and US$ 5,095 in 2011. 

Another trend in the study is said to be Greater conscious decision making by the women and conveying what they want to their partners: 67 per cent  of brides began researching rings before getting engaged, using their mobile devices to browse ring styles. 

The next trend says more time spent on the purchase: men took an average of 4.8 months to research and 3.6 months to find the perfect engagement ring; they also visited around five retailers and looked at an average of 25 rings before purchasing "the one”. 

 Another top trend proposing in public places: 45 per cent of grooms proposed in a public place, up from 34 per cent in 2011. 

Tradition at the heart of the proposal: About 77 per cent  of the men asked for the father's or parents' permission before popping the question;   85 per cent proposed on bended knee; and  89 per cent even said the words, "will you marry me?" and 88 per cent proposed with the engagement ring in hand. 

 Capturing the moment and spreading the news a priority: 41 per cent   had a photographer or videographer capture the proposal as it happened. 

 While diamonds prevail, precious stones use on the rise:  63 per cent received a clear diamond centre stone with side stones and/or accents; 21 per cent received a clear diamond solitaire; 8 per cent received a non-diamond precious stone engagement ring, up from 6 per cent  in 2013. 

Quality Over Quantity:  85 per cent men would rather buy a smaller, better quality diamond than a larger stone of lesser quality, and 57 per cent  of brides agree;  33 per cent  of the brides say they  prefer a different shaped stone than the traditional  round shape. 

Preference for Customisation:  45 per cent of men are choosing to add personal elements to the engagement ring; 86 per cent of brides received a new ring, 11 per cent  an heirloom and 3 per cent  a vintage piece. 

Wedding Band Spend Increases:  a comfortable fit is the top priority for grooms when choosing a wedding band, while showing off a band with diamonds is essential (46%) for brides. She prefers a white gold wedding band above all.